The art of thinking · 3 · Memory

Cognitive schema

Also known as: Schema (psychology), Schemata, Script (cognitive psychology)

German: kognitives Schema

In cognitive psychology, a cognitive schema is an organized structure of knowledge in long-term memory about a type of object, situation or event that guides perception, comprehension and recall by supplying expectations and default values; a script is a schema for a routine sequence of events.

Cognitive psychology
Memory
Reading comprehension

In one sentence

A cognitive schema is an organized knowledge structure that guides perception, comprehension and recall (Bartlett 1932; Schank and Abelson 1977).

Example

A reader with a schema for “restart after a stop” expects to reset, then start. An instruction that requires a different order on one machine is misread because the schema fills in the familiar sequence.

What the research shows

Frederic C. Bartlett (1932) asked English participants to retell an unfamiliar Native American story (“The War of the Ghosts”) and found that their versions became shorter and more conventional, adapted to their own cultural expectations; he explained this with schemata, active organizations of past experience. Roger C. Schank and Robert P. Abelson (1977) described scripts — knowledge structures for routine event sequences such as a restaurant visit — that let people understand stories in which most steps are left unstated. John D. Bransford and Marcia K. Johnson (1972) showed that a passage about an everyday procedure was hard to understand and recall when readers did not know its topic, and much easier when they were told the topic beforehand.

Evidence status

That prior knowledge structures shape comprehension and memory is well established. “Schema” is a broad theoretical term rather than a precisely specified mechanism, and models differ in how schemas are represented and learned. Schemas help readers fill gaps and make sense of text quickly; the same process causes predictable distortions when a text departs from the expected pattern. In the Schema (data) entry, schema means a formal data structure — a different concept that only shares the word. Related but distinct is the mental model of a specific system.

How it applies

Readers interpret instructions through their schemas; a mismatch between the reader's schema and the text causes misreading, especially where a machine behaves differently from what is usual. The glossary “Applied cognitive psychology for information use” covers the design side, for example advance organizers. Where a procedure deliberately departs from a familiar pattern, saying so explicitly is an editorial choice; whether such a deviation is acceptable is decided in the risk assessment.

External references

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